* {
    margin: 0;
    padding: 0;
}

#header {
    background-color: rgb(36, 104, 169);
    color: white;
}

#header>span {
    float: left;
    display: block;
    margin: 0 2%;
    font-size: 20px;
    height: 50px;
    line-height: 50px;
}

#header>div,
#header>div>div {
    float: right;
}

#header>div {
    height: 50px;
    line-height: 50px;
    background-color: rgb(7, 85, 151);
    margin-right: 2%;
    width: 11%;
    cursor: pointer;
}

#header>div>div:nth-of-type(1) {
    margin: 2% 10% 0 0;
}

#header>div>div:nth-of-type(2) {
    margin: 0 5%;
    font-size: 16px;
}

#header>div>div:nth-of-type(3) {
    background-color: white;
    color: black;
    width: 44px;
    height: 44px;
    margin: 3px 1% 0 8%;
    border-radius: 50%;
    text-align: center;
}

#header>div>div:nth-of-type(3)>span {
    display: block;
    line-height: 44px;
    font-size: 20px;
}

#nav {
    height: 320px;
    overflow: hidden;
    width: 100%;
    border: 1px solid rgb(229, 229, 229);
}

#nav>li {
    list-style-type: none;
    cursor: pointer;
    height: 40px;
    line-height: 40px;
    border: 1px solid rgb(228, 228, 228);
    background-color: white;
    padding-left: 30%;
}

#nav>li:first-child {
    background-color: rgb(245, 245, 245);
    padding-left: 0;
}

#nav_header>span {
    padding: 0 3% 0 10%;
}

#nav_header>span:last-child {
    padding: 0;
    margin: 0 15%;
}

#nav>li:hover {
    background-color: white;
    color: #2B7DBC;
}

#left_nav {
    width: 12%;
    background-color: rgb(245, 245, 245);
    float: left;
}

#content {
    width: 88%;
    float: left;
}